Professor Werker studied Medicine at Utrecht (NL), Aberdeen (UK) and Harrow (UK) and graduated in 1987. He thereafter fulfilled his Military Service at the Military Hospital in Utrecht. He completed a PhD on free flap preservation in 1992 and trained at the University Medical Centre of Utrecht to become a plastic surgeon in 1996. He was Fellow in reconstructive microsurgery in Louisville KY, USA, before returning to Utrecht as an Assistant Professor. In 1999 he became an attending plastic surgeon in Zwolle (NL) and moved to Groningen (NL) in 2006, where he is currently Professor and Chair of the Department of Plastic Surgery of the University Medical Centre Groningen.
Professor Werker is a diplomate of European Board of Plastic Reconstructive and Aesthetic Surgery (EBOPRAS) and the Federation of European Societies for Surgery of the Hand (FESSH). He is a member of the Dutch Society for Plastic Surgery, the Dutch Society for Hand Surgery, the Dutch Society for Aesthetic Plastic Surgery, the British Society for Surgery of the Hand (BSSH), the European Association of Plastic Surgeons (EURAPS) and the American Association of Hand Surgeons. He is since 1999 active in the training program of Plastic Surgeons in the Netherlands and since 2006 Director of training in Groningen and has acted in many local, national and international committees. Since 2008 he is engaged in the UEMS section of Plastic Reconstructive and Aesthetic Surgery and EBOPRAS and is since 2013 treasurer of the UEMS section and since this May also treasurer of EBOPRAS.
Professor Werker is (co-) author of over 100 peer reviewed pubmed listed journal papers, 14 book chapters, co-editor of two book on Dupuytren's Diseaseand has won the Esser-prize for his work on the foreskin free flap in 2000. His main areas of clinical interest are Dupuytren’s Disease, reconstructive surgery of breast and facial palsy. Dupuytren’s Disease is his most important research line at the University Medical Centre Groningen at he is a frequently invited speaker on this subject.